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Digital Computer Electronics

Digital Computer Electronics
Which of the following logic expression is wrong?

1+0+1 = 1
1 + 0=1
1 + 1 + 1 = 1
1 + 1=0
None of these

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Digital Computer Electronics
An OR gate has 6 inputs. What is the only input word that produces a 0 output?

111000
111111
None of these
111

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Digital Computer Electronics
In boolean algebra, the times sign stands for the _____ operation

NOR
OR
NAND
None of these
AND

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Digital Computer Electronics
The dynamic race hazard problem occurs in

combinational circuits only
none of the combinational and sequential circuits
both combinational and sequential circuits
sequential circuits only
None of these

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Digital Computer Electronics
Conversion of binary number 1100002 to hexadecimal is

4016
4316
3016
2716
None of these

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Digital Computer Electronics
A shift register moves the _____ left or right. Serial loading means storing a word in a shift register by entering _____ bit per clock pulse. With parallel or broadside loading, it takes only one _____ pulse to load the input word.

right, eight, clock
bits, one, register
light, eight, clock
None of these
bits, one, clock

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